I run LMDE in Virtualbox. Sound worked well until I installed update pack 5, but now I have no sound. I have looked at the pulseaudio settings and there is nothing obviously wrong. The pulseaudio volume monitor shows that music is playing, but there is nothing coming out on the speakers. As the problem started with the update to Mint, I assume that something changed in Mint is the problem, but I don't know what to look for.

I had the following message in /var/log/messages before and after the update, so I assume it is not suspicious

ok, got the audio working on my mint virtual machine on virtualbox.Menu -> Preferences -> Volume ControlChange the device in the dropdown to SigmaTel... (OSS Mixer)Change the Master volume in the Playback tab (the default was 0)

To solve the issue, I installed Pulseaudio volume control (pavucontrol) with the Software Manager. After installation, open PulseAudio Volume Control. Click on the Output Devices tab and change the port from "Analog Mono Output/Amplifier" to "LFE on Separate Mono Output/Amplifier".

To solve the issue, I installed Pulseaudio volume control (pavucontrol) with the Software Manager. After installation, open PulseAudio Volume Control. Click on the Output Devices tab and change the port from "Analog Mono Output/Amplifier" to "LFE on Separate Mono Output/Amplifier".

To solve the issue, I installed Pulseaudio volume control (pavucontrol) with the Software Manager. After installation, open PulseAudio Volume Control. Click on the Output Devices tab and change the port from "Analog Mono Output/Amplifier" to "LFE on Separate Mono Output/Amplifier".

Hope this helps someone

This worked for me, too. I don't know how you knew this is what would fix it, but THANK YOU!